Buckling of composite cylindrical shells with rigid end disks under hydrostatic pressure

Лопатин, А.В.; Морозов, Е.В.

doi:10.1016/j.compstruct.2017.03.109

Cited by 52 publications

(20 citation statements)

References 14 publications

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“…The curve appropriately reflects the characteristics of the longitudinal displacement of the shell under buckling. It was verified by Lopatin and Morozov 9 that the boundary condition given by equation (10b) was satisfied.…”

Section: Solution Proceduresmentioning

confidence: 78%

“…Especially, the maximum displacement occurs at the midspan. Based on these buckling behaviors, approximation functions can be selected in the following form 9 in which V n , W n and U n are unknown constants, and Φ( α ) is the clamped-clamped beam function 38 in which λ = 4.73004074, σ = 0.982502215.…”

Section: Solution Proceduresmentioning

confidence: 99%

“…Hence, when designing composites pressure shell subjected to hydrostatic pressure, buckling has been a major concern for researchers. 5–9…”

Section: Introductionmentioning

confidence: 99%

“…Hence, when designing composites pressure shell subjected to hydrostatic pressure, buckling has been a major concern for researchers. [5][6][7][8][9] Sofiyev 10 studied the stability of laminated orthotropic cylinders resting on elastic foundations subjected to combined loads under different boundary conditions. Based on the boundary layer theory, Li and Qiao 11 studied the buckling and postbuckling analysis for an anisotropic laminated cylindrical shell of finite length subjected to combined loading of external pressure and axial compression; Shen [12][13][14] and Xiang 15 studied postbuckling analysis for perfect and imperfect, isotropic and laminated cylindrical shells under various loading cases.…”

Section: Introductionmentioning

confidence: 99%

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Optimizing the buckling strength of filament winding composite cylinders under hydrostatic pressure

Chun

Pan

2018

Journal of Reinforced Plastics and Composites

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This paper presents the design optimization of filament winding composite cylindrical shell under hydrostatic pressure to maximize the critical buckling pressure. To this end, an optimization framework has been developed by employing numerical solution integrated with genetic algorithm. The design variables are fiber orientation and the corresponding number of layers. The framework is used to find the optimal design of filament winding composite cylindrical shell subjected to hydrostatic pressure. Three types of winding pattern are investigated, and the maximum critical buckling loads are increased by 26.14%, 25.82% and 20.95% compared with the base line, respectively. The influences of design variables on the critical buckling pressure are investigated. Results show that filament winding angles have more significant effect on the critical buckling pressure than the corresponding number of layers. Comparative study is carried out to verify the efficiency and accuracy of the optimization framework. Compared with the finite element analysis, the optimization framework has significant advantages in terms of calculation efficiency.

show abstract

Section: Solution Proceduresmentioning

confidence: 78%

Section: Solution Proceduresmentioning

confidence: 99%

“…Hence, when designing composites pressure shell subjected to hydrostatic pressure, buckling has been a major concern for researchers. 5–9…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Optimizing the buckling strength of filament winding composite cylinders under hydrostatic pressure

Chun

Pan

2018

Journal of Reinforced Plastics and Composites

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show abstract

“…It was observed that the experimental results were 20% higher than FE prediction. Lopatin and Morozov [38] presented an analytical solution for the buckling problem of a composite cylindrical subjected to hydrostatic pressure. The maximum critical pressure was achieved when the helical angle equaled 65 • .…”

Section: Introductionmentioning

confidence: 99%

Numerical Analysis of Sandwich Composite Deep Submarine Pressure Hull Considering Failure Criteria

Helal

Huang

Wang

et al. 2019

JMSE

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The pressure hull is the primary element of submarine, which withstands diving pressure and provides essential capacity for electronic systems and buoyancy. This study presents a numerical analysis and design optimization of sandwich composite deep submarine pressure hull using finite element modeling technique. This study aims to minimize buoyancy factor and maximize deck area and buckling strength factors. The collapse depth is taken as a base in the pressure hull design. The pressure hull has been analyzed using two composite materials, T700/Epoxy and B(4)5505/Epoxy, to form the upper and lower faces of the sandwich composite deep submarine pressure hull. The laminated control surface is optimized for the first ply failure index (FI) considering both Tsai–Wu and maximum stress failure criteria. The results obtained emphasize an important fact that the presence of core layer in sandwich composite pressure hull is not always more efficient. The use of sandwich in the design of composite deep submarine pressure hull at extreme depths is not a safe option. Additionally, the core thickness plays a minor role in the design of composite deep submarine pressure hull. The outcome of an optimization at extreme depths illustrates that the upper and lower faces become thicker and the core thickness becomes thinner. However, at shallow-to-moderate depths, it is recommended to use sandwich composite with a thick core to resist the shell buckling of composite submarine pressure hull.

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A separation‐of‐variable method for eigenbuckling analysis of closed and open circular cylindrical shells

Gao,

Chen,

Zhang

et al. 2023

Z Angew Math Mech

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The analytical solutions for buckling of closed and open cylindrical shells under different boundary conditions are challenging. A separation‐of‐variable method with closed‐form eigensolution under Donnell–Mushtari theory is proposed for eigenbuckling analysis in cylindrical shells. The modal function is adopted as the form W = eμαeλβ. It can be applied to the closed and open cylindrical shells with different boundary conditions, and the whole calculation process is explicit. The critical buckling capacities of short cylindrical shells are close under the simply supported or clamped boundary conditions. The predictions are in good agreement with those in literature and the finite element model.

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Buckling of composite cylindrical shells with rigid end disks under hydrostatic pressure

Cited by 52 publications

References 14 publications

Optimizing the buckling strength of filament winding composite cylinders under hydrostatic pressure

Optimizing the buckling strength of filament winding composite cylinders under hydrostatic pressure

Numerical Analysis of Sandwich Composite Deep Submarine Pressure Hull Considering Failure Criteria

A separation‐of‐variable method for eigenbuckling analysis of closed and open circular cylindrical shells

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